[Haskell-cafe] Cabal failures...

[Gregory Guthrie]

Thanks for looking at this and the help;
Trying with "topdown" changes things, but as often is the case warns that it will break another ~60 packages if I force it, not sure if this will help me or cause the ruin of the rest of the local Haskell library universe.

Should I force it?!  :-)

C:\Users\guthrie>cabal install -v --solver=topdown cabal-install
Reading available packages...
Resolving dependencies...
In order, the following would be installed:
Win32-2.2.2.0 (reinstall) changes: base-4.5.0.0 -> 4.5.1.0
array-0.4.0.0 (reinstall) changes: base-4.5.0.0 -> 4.5.1.0
deepseq-1.3.0.0 (reinstall) changes: base-4.5.0.0 -> 4.5.1.0
containers-0.4.2.1 (reinstall) changes: base-4.5.0.0 -> 4.5.1.0
old-locale-1.0.0.4 (reinstall) changes: base-4.5.0.0 -> 4.5.1.0
old-time-1.1.0.0 (reinstall) changes: base-4.5.0.0 -> 4.5.1.0
directory-1.1.0.2 (reinstall) changes: base-4.5.0.0 -> 4.5.1.0
pretty-1.1.1.0 (reinstall) changes: base-4.5.0.0 -> 4.5.1.0
process-1.1.0.1 (reinstall) changes: base-4.5.0.0 -> 4.5.1.0
Cabal-1.16.0.3 (new version)
text-0.11.2.3 (reinstall)
parsec-3.1.3 (reinstall)
network-2.4.0.1 (new version)
HTTP-4000.2.5 (reinstall) changes: network-2.3.1.0 -> 2.4.0.1
time-1.4 (reinstall) changes: base-4.5.0.0 -> 4.5.1.0
random-1.0.1.1 (reinstall) changes: base-4.5.0.0 -> 4.5.1.0
cabal-install-1.16.0.2 -bytestring-in-base (new package)
cabal: The following packages are likely to be broken by the reinstalls:
QuickCheck-2.4.2
haskell98-2.0.0.1
ghc-7.4.1
Cabal-1.14.0
bin-package-db-0.0.0.0
hpc-0.5.1.1
haskell-platform-2012.4.0.0
QuickCheck-2.5.1.1
haskell98-2.0.0.1
ghc-7.4.2
Cabal-1.14.0
bin-package-db-0.0.0.0
hpc-0.5.1.1
text-0.11.2.0
parsec-3.1.2
stm-2.3
regex-posix-0.95.1
regex-compat-0.95.1
regex-base-0.93.2
parallel-3.2.0.2
haskell2010-1.1.0.1
haskell-src-1.0.1.5
fgl-5.4.2.4
template-haskell-2.7.0.0
hoopl-3.8.7.3
binary-0.5.1.0
GLUT-2.1.2.1
network-2.3.1.0
cgi-3001.1.7.4
blaze-builder-0.3.1.0
stm-2.4
async-2.0.1.3
regex-posix-0.95.2
regex-compat-0.95.1
regex-base-0.93.2
parallel-3.2.0.3
haskell2010-1.1.0.1
haskell-src-1.0.1.5
fgl-5.4.2.4
vector-0.10.0.1
vector-algorithms-0.5.4.2
math-functions-0.1.1.2
template-haskell-2.7.0.0
hoopl-3.8.7.3
binary-0.5.1.0
GLUT-2.1.2.1
HUnit-1.2.5.1
Use --force-reinstalls if you want to install anyway.

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From: Johan Tibell [mailto:johan.tibell at gmail.com] 
Cc: haskell-cafe at haskell.org; Andres Löh
Subject: Re: [Haskell-cafe] Cabal failures...

I'm not quite sure what's going on. I've CCed Andres, who wrote the new constraint solver.

One especially confusing part is this:

C:\Users\guthrie\AppData\Local\Temp\Cabal-1.16.0.3-12392\Cabal-1.16.0.3\dist\set
up\setup.exe
configure --verbose=2 --ghc --prefix=C:\Users\guthrie\AppData\Roaming\cabal
--user --flags=base4 --flags=base3 --constraint=process ==1.1.0.1
--constraint=pretty ==1.1.1.0 --constraint=old-time ==1.1.0.0
--constraint=filepath ==1.3.0.0 --constraint=directory ==1.1.0.2
--constraint=containers ==0.4.2.1 --constraint=base ==4.5.1.0
--constraint=array ==0.4.0.0 --disable-tests --disable-benchmarks
Configuring Cabal-1.16.0.3...
Flags chosen: base3=True, base4=True
Dependency array ==0.4.0.0: using array-0.4.0.0
Dependency base ==4.5.1.0: using base-4.5.1.0
Dependency containers ==0.4.2.1: using containers-0.4.2.1
Dependency directory ==1.1.0.2: using directory-1.1.0.2
Dependency filepath ==1.3.0.0: using filepath-1.3.0.0
Dependency old-time ==1.1.0.0: using old-time-1.1.0.0
Dependency pretty ==1.1.1.0: using pretty-1.1.1.0
Dependency process ==1.1.0.1: using process-1.1.0.1
Warning: This package indirectly depends on multiple versions of the same
package. This is highly likely to cause a compile failure.

Why is Cabal setting both base3 and base4 to True?

P.S. You can try the same command with --solver=topdown and see if that works.

On Mon, Nov 19, 2012 at 8:22 PM, Gregory Guthrie <guthrie at mum.edu> wrote:
Johan, thanks for the note and information.
 
My setup is: (Windows 7)
cabal-install version 0.14.0
using version 1.14.0 of the Cabal library
The Glorious Glasgow Haskell Compilation System, version 7.4.2
Haskell Platform 2012.4.0.0
 .....
cabal-install-1.16.0.2 depends on Cabal-1.16.0.3 which failed to install.
 
 
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